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k mount to m42 adapter

Hello All,

Does anyone know of any good adapters?

I received one today from ebay, the $6 kind. I just spent the last hour trying to get it off my K1000 and stupidly enough I then put it on my Kr, got it off now and know a way how to get it off easily, but still not easily enough.

I'm going to spend the extra to get a genuine adaptor, this is one thing you don't want to go third party with as you've found out. I don't know how to remove it either, the pentax forum might have some tips.

I have two M42 adapters for Nikon F-mount, and while it's not as easy as a standard f-mount lens to remove, I always manage to remove the adapter with the lens as one piece and then remove the adapter from the lens.

I suppose it depends on how hard you've tightened the lens onto the adapter threads ... maybe I tighten the lens more on the adapter than you do.

Both my adapters are the cheapo $2 type from ebay, and one of them is particularly thin and is very hard to remove from the mount if the lens has been removed first.
When that's the case, before I screw the lens back on to attempt removal of the adapter, first thing I'll try is to use the two finger method.
(of course this has to be done with care not to touch the mirror in the camera)
Use index and middle fingers in the thread of the adapter, and place outwards pressure on the threads with the fingers.
Before trying to unmount the adapter, of course the lens release lock will need to be pressed.

the adapter I have is designed to focus to infinity and has a little metal 'clip' not sure if this is the right description to lock the adapter into place into the body and to remove I'd need to use a special tool which was provided. The tool doesnt help.

I've worked out how to remove it easily now, I removed the 'clip' on the adapter. Only disadvantage of this now is the lens does not lock into the body, so I would have to becareful not to throw it around.